This study was designed to identify the incidence of sleep complaints in 39 patients with chronic postconcussion syndrome compared to those of a control group of 27 patients with orthopedic injuries. Patients with orthopedic injuries were selected as a comparison group to control for the effects of traumatic injury or chronic pain. There were no differences in age, sex distribution, or time from injury between the patient groups. Type and frequency of sleep disturbances in a mean two-year postinjury period were evaluated. Patients with chronic postconcussion syndrome reported more difficulty in initiating and maintaining sleep at night and greater difficulty with sleepiness during the day.
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